RT Journal Article
T1 Crystallization Process and Microstructural Evolution of Melt Spun Al-RE-Ni-(Cu) Ribbons
A1 Gómez Cuevas, Francisco de Paula
A1 Lozano Pérez, Sergio
A1 Aranda Louvier, Rosa María
A1 Astacio López, Raquel
AB The crystallization process, both at the initial and subsequent stages, of amorphousAl88-RE4-Ni8 alloys (RE = Y, Sm and Ce) has been studied. Additionally, the consequences of adding1 at.% Cu replacing Ni or Al were studied. The stability of the amorphous structure in melt spunribbons was thermally studied by differential scanning calorimetry, with Ce alloys being the moststable. The effect of Cu to reduce the nanocrystal size during primary crystallization was analyzed bytransmission electron microscopy. This latter technique and x-ray diffraction showed the formationof intermetallic phases at higher temperatures. A clear difference was observed for the Ce alloy,with a simpler sequence involving the presence of Al3Ni and Al11Ce3. However, for the Y and Smalloys, a more complex evolution involving metastable ternary phases before Al19RE5Ni3 appears,takes place. The shape of the intermetallics changes from equiaxial in the Ce alloys to elongate for Yand Sm, with longer particles for Sm and, in general, when Cu is added to the alloy.
PB MDPI
SN 2075-4701
YR 2020
FD 2020-03
LK http://hdl.handle.net/10272/18233
UL http://hdl.handle.net/10272/18233
LA eng
NO Gómez Cuevas, F. P., Lozano Pérez, S., Aranda Louvier, R. M., & Astacio López, R. (2020). Crystallization Process and Microstructural Evolution of Melt Spun Al-RE-Ni-(Cu) Ribbons. Metals, 10(4), 443. DOI: https://doi.org/10.3390/met10040443
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026